Mud Factor - Eugene

Junction City, United States • 27 Jun 2026

Mud Factor - Eugene, June 27, 2026

Mud Factor in Eugene is a 5K obstacle mud run held at Eugene MX Park in Junction City on June 27, 2026. The event features separate Kidz family waves and adult waves and includes a festival area for spectators.

All participants are required to print, sign, and bring a liability waiver. Adult participants must present a photo I.D. at the registration tent. There are no refunds under any circumstances. Prices and the event date or location are subject to change.

Spectators are admitted to the festival area for a cash fee of $10 at the event. Youth aged 14 and under are admitted free. Registration pricing listed for this event includes lower-rate options for select adult waves and for Kidz family waves; regular prices are also shown.

Professional event photos are available after the event, with an initial price of $3.99 for the first 48 hours after upload. Event materials note that 2026 designs may differ from images shown. Organizers provide a downloadable liability waiver and event-day information for participants to print and bring to the event.

The description above is based on information provided by the event organizer and lists the main logistical and entry details communicated for the Eugene event. Visit the organization's website for the most recent information.

Race information

5 km
5k Obstacle Run
Adult Waves
Kidz Family Waves
Visit the organization's website for the most recent information.
Trail runs nearby

Trail running event in Marcola Oregon on April 4 2026 offering 50K, 25K, 10K and 5K distances. Fees vary by age and an optional tech shirt is available for $18.

A 50K trail race in McDonald Forest near Corvallis, OR, run on maintained singletrack with scenic mountain and valley views; proceeds support local schools, mountain rescue and the OSU Research Forest.

Ridgeline Ramble is a trail running event in Eugene on May 23, 2026, offering 20K and 10K courses from Blanton Trailhead to Frank Kinney Park. The event includes shuttle service, multiple aid stations, and awards for overall and age group f..

A timed trail event at Elijah Bristow State Park where runners repeat a 1.05 mile loop for set time limits. Options include 24 hour, 12 hour day, 12 hour night and 6 hour races with a staffed aid station each lap.